Hen na Nee-san - Vol. 1 Ch. 7 - Tomorrow's Me 2

[MangaDex]

 

[worldmaker1]

Isn't this in Doraemon (doing home work, not scissoring of course)

 

[Verypeeved]

the proper response to time paradoxes.

 

[Insignificant]

That's really really hot.

 

[nyaasar]

"I'm having an orgy with myself last night."

 

[MAtgS]

The bootstrap paradox that she learns this trick from herself.